What’s the midpoint?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.